Home / 1,868.68-2,781.05-1,862.92

Finding the Fourth Proportional to 1,868.68, 2,781.05 and 1,862.92

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Solution

The fourth proportional to 1,868.68, 2,781.05 and 1,862.92 is: 2,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.68 : 2,781.05 = 1,862.92 : x
  2. Step 2: Convert to fraction form
    1,868.68/2,781.05 = 1,862.92/x
  3. Step 3: Cross multiply
    1,868.68x = 2,781.05 × 1,862.92
  4. Step 4: Simplify right side
    1,868.68x = 5,180,873.67
  5. Step 5: Solve for x
    x = 5,180,873.67/1,868.68
  6. Step 6: Final answer
    x = 2,772.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.